The quality replacement saw cutting chain can use with various model nos. Cutting chain has a 3/8" pitch & is 0. 050 gauge. 18" 3/8" pitch . 050 gauge For use with chain saws 2155, 2175, 2300, 2375, 2400, 2450, 2500, 2550, 2555, 2600, P260, P - 3818AV, 3818WT, 4018WT, 4018AV & 4018AVBH, PPB - 1838, 4018 & 4218, PP - 4018, 4018WTL, 4218AV, 4218AVX & 4218AVL & SM4218AV.